1) coal structure
煤结构
1.
The methods of quantum chemistry calculation generally used in the investigation on coal structure and reactivity are introduced.
通过对现有相关工作的研究发现 :量子化学计算方法作为一种研究手段已经能够满足煤结构与反应性研究的需要 ;合理地建立和选择能够反映被研究过程特点的煤结构模型是运用量子化学计算方法解决问题的关键 ;对煤反应性的研究仅从化学键的断裂入手 ,键的形成尚未涉及 ;煤的量子化学静态参量的研究尚待深化 。
2.
Based on the research of coal structure,it is of great possibility to obtain coal based chemicals,aromatic polymer and carbon-based materials,and as a result realize.
通过对煤结构的深入研究 ,可望从煤出发获取煤基化学品、芳香高聚物和碳材料 ,实现煤炭资源向非燃料利用的转变 ,迎来煤化工的黄金时代。
3.
In view of the limitation of the traditional coal chemistry and the research achievement of coal molecular structure, this paper provides the molecular coal chemistry is that we should reveal the coal structure on the molecular level by the advanced analytical methods and probe the rational use of coal based on the coal molecular structure.
系统综述了红外光谱、核磁共振波谱、质谱、紫外光谱四大有机波谱方法在分子煤化学领域中的研究进展情况 ,并分别对上述现代分析检测技术在煤结构研究中的优势作了深入阐述 ,最后指出基于分子煤化学的研究成果 ,可望实现温和条件下煤的定向转
2) char structure
煤焦结构
1.
The interaction between mineral matter and metaplast under different conditions was analyzed,and the influencing mechanism of mineral matter on char structure was indicated.
分析了矿物质与胶质体在不同条件下相互作用机理,解释了矿物对煤焦结构的影响。
3) texture of coal seam
煤层结构
1.
0m,based on geological factors of mining depth,texture of coal seam,parting number,hardness and thickness,seam roof lithology and thickness,coal and rock mass fissure development,considering gas and coal dust concentrations,optimizing three coal mining method schemes of longwall fully mechanized slicing,fully mechanize.
0m,在综合分析该矿井开采深度,煤层厚度、煤层结构、夹矸层数及其硬度和厚度、煤层顶板岩性及其厚度、煤岩体裂隙发育程度等地质因素基础上,考虑瓦斯聚积程度及煤尘量等影响因素,对长壁综采分层开采法、综采一次采全高采煤法和长壁综采放顶煤采煤法三个采煤方案进行优选,最终选定该矿采用长壁综采放顶煤采煤方法,依靠地压破煤及自重放煤,提高厚煤层的回收率。
2.
Based on the observabion upon the macrolithotype and texture of coal seam describtion,and record for the whole coal seam underground Dongpo Coal Mine and nearby mine(West Jinpo Coal Mine,North Anjialing Surface Coal Mine),and combined the test data of coal quality,comparative analysis between drilling data and log results of No.
基于东坡煤矿及附近矿井(西部金坡煤矿、北部安家岭露天煤矿)井下全煤层宏观煤岩类型及煤层结构观测、描述、记录,结合煤质化验数据,通过对太原组4-1、9煤层钻探、测井成果的对比分析,探讨了东坡煤矿煤中灰分变化的规律。
4) coal body structure
煤体结构
1.
Geological controls of coal body structure atNo.1 mine in Shizuishan mine area;
石嘴山一矿煤体结构变化的地质控制
2.
To ensure safe production in coal mine,the author analyzes geological factors of Pingdingshan tenth coal mine,which effect the gas source and outburst of outburst coal bed,such as geological structure,change of the coal layer's thickness,coal body structure,bury depth and so on.
为确保煤矿安全生产,作者对平顶山十矿影响突出煤层瓦斯赋存和突出的地质构造、煤层厚度的变化、煤体结构、埋藏深度等地质因素进行了分析研究,认为:地质条件对煤层瓦斯体积含量和煤与瓦斯突出的分区分带具有明显的控制作用;井田内厚度小于2 m的单一煤层一般不具突出危险性,但随着开采深度的增加有可能发生突出;戊9-10煤层分叉合并线附近为煤与瓦斯突出带,其他煤层分叉合并线附近可能形成煤与瓦斯突出危险带。
5) coal structure
煤体结构
1.
The results of the analysis showed that the coal structure as the important cause of the coal wave velocity difference.
系统地测试了淮北煤田杨庄煤矿5,6煤层煤样的纵波速度、抗压强度、抗拉强度和变形参数,得出了煤波速的差异性及各向异性特征,分析了煤体结构是煤波速差异性的重要原因;对煤样波速与其力学指标进行了对比研究,得出了拟合公式,表明两者之间有很好的相关关系,为煤岩强度的确定提供了一种新的方法。
2.
Practics proves that there are close relations between coal structure and coal-gas outburst disasters.
实践证明煤体结构和煤与瓦斯突出灾害之间存在着密切的联系,准确判断煤体结构类型对于预防煤与瓦斯灾害的发生具有一定的指导意义。
3.
The results show that the development degree of cleats is the major controlling factor,second is the effective stress,exokinetic fractures and the coal structure,but the cleat development is controlled by coal rank and vitrinite content.
研究表明，控制煤层渗透性的主要地质因素为割理的发育程度，其次为有效地应力、外生裂隙和煤体结构等。
补充资料：高炉煤气筒形除尘器钢结构安装
高炉煤气筒形除尘器钢结构安装
扩 高炉煤气筒形除尘器钢结构安装
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条